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Re:First claimed successful replication of LK-99 superconduc... by amluto on Tuesday August 01, 2023 @05:53PM (#36963667)
Keep in mind that a superconducting energy storage device is kind of the opposite of a battery. An idle battery at full charge has some voltage and zero current, and it’s perfectly happy to stay like that.

An idle superconducting energy storage at full “charge” is not carrying a charge at all — it’s carrying a current. If you cut the wire (or blow a fuse), V = L dI/dt will generate an arbitrarily high voltage to keep that current flowing.

I imagine one would need some spark gaps and/or capacitors to limit the voltage.

Re:First claimed successful replication of LK-99 superconduc... by jacquesm on Wednesday August 02, 2023 @05:17PM (#36977630)
It's a coil. You can just place another inductor around it and increase / decrease that current at will. This is how Kamerlingh Onnes injected current into his superconducting media during the original experiments and that is a two-way street.

https://www.lorentz.leidenuniv.nl/history/cold/DelftKes_HKO_...